CN206710613U - On-Line Monitor Device is discharged in a kind of nuclear radiation - Google Patents
On-Line Monitor Device is discharged in a kind of nuclear radiation Download PDFInfo
- Publication number
- CN206710613U CN206710613U CN201720374923.2U CN201720374923U CN206710613U CN 206710613 U CN206710613 U CN 206710613U CN 201720374923 U CN201720374923 U CN 201720374923U CN 206710613 U CN206710613 U CN 206710613U
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- Prior art keywords
- monitor device
- line monitor
- detector
- nuclear radiation
- joint
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Abstract
It the utility model is related to technical field of nuclear radiation protection, a kind of nuclear radiation discharge on-Line Monitor Device is provided, including detector, treatment in situ display unit, electric circuit connection container, flowmeter, pressure-reducing valve, for depositing dismountable temporary storage tank of gas temporarily, the air inlet of on-Line Monitor Device is connected after the tie point pipeline of parallel connection and the second bypass line with the sampling jar of detector front end, tie point pipeline is provided with magnetic valve and pressure-reducing valve, second bypass line is provided with the second stop valve and pressure-reducing valve, the gas outlet of sampling jar is connected with the second joint, connecting pipe is provided with flowmeter, the gas outlet of on-Line Monitor Device is connected with the first joint, connecting pipe is provided with the first stop valve, the gas outlet of first joint and temporary storage tank connects, second joint and the air inlet of temporary storage tank connect.On-Line Monitor Device is discharged in the utility model nuclear radiation, simple to operate, easy to use, while can reduce the repair time.
Description
Technical field
Technical field of nuclear radiation protection is the utility model is related to, specifically a kind of nuclear radiation discharge on-line monitoring dress
Put.
Background technology
To ensure the safe for operation of nuclear power plant reactor and ensureing the radiation safety of nuclear power station staff, and ensure core
Numerous residents' radiation safety around power station, the radgas activity concentration of nuclear power station smoke stack emission, which can not exceed to limit, to be required,
KRT017MA in nuclear power station KRT factory building radiation monitoring systems mainly monitors the radgas activity concentration of DVN smoke stack emissions.
Nuclear power station unit station is big/light maintenance during, when hydrogen-oxygen separates the 4th step TEP systems and needs to carry out idle discharge to put, storage tank before TEP
Middle radgas is emitted into before DVN chimneys, it is necessary to radgas activity（β activity）Measurement is sampled, is realized to TEP
The sampling discharge of preceding storage tank, avoids TEP discharges from causing KRT passages at DVN chimneys（Mainly KRT017MA）Alarm.
The content of the invention
The purpose of this utility model is just to provide a kind of nuclear radiation discharge on-Line Monitor Device, for online emission monitoring,
It is simple to operate, easy to use, while the repair time can be reduced.
To achieve the above object, the utility model adopts the following technical scheme that：On-Line Monitor Device is discharged in a kind of nuclear radiation,
Including detector, treatment in situ display unit（LPDU）, electric circuit connection container, flowmeter, pressure-reducing valve, for depositing gas temporarily
Dismountable temporary storage tank, the air inlet of on-Line Monitor Device after the tie point pipeline of parallel connection and the second bypass line with detection
The sampling jar connection of device front end, tie point pipeline are provided with magnetic valve and pressure-reducing valve, and the second bypass line is provided with second section
Only valve and pressure-reducing valve, the gas outlet of sampling jar are connected with the second joint, and connecting pipe is provided with flowmeter, on-Line Monitor Device
Gas outlet is connected with the first joint, and connecting pipe is provided with the first stop valve, and the gas outlet of the first joint and temporary storage tank connects, the
Two joints and the air inlet of temporary storage tank connect.
In the above-mentioned technical solutions, the on-Line Monitor Device is arranged on fixed rack.
In the above-mentioned technical solutions, the temporary storage tank is located at below fixed rack, including a tank body, tank body be provided with into
Gas port and gas outlet, tank body both ends are provided with handle.
In the above-mentioned technical solutions, the detector uses plastic scintillator detector, detector face sampling jar, detection
Device and sampling jar are by screw connection into an entirety.The output end of the detector and treatment in situ display unit（LPDU）Even
Connect, treatment in situ display unit（LPDU）It is connected with electric circuit connection container.
In such scheme, after gas sampled enters sampling jar i.e. measurement pipeline section, the radioactivity inert gas transmitting in gas
β rays inject plastic scintillator detector in and be detected, caused output of pulse signal to treatment in situ display unit
（LPDU）The parameter such as middle carry out Treatment Analysis, pressure, flow in device can reflect the liquid crystal display for the treatment of in situ display unit,
In order to avoid personnel understand in time.Treatment in situ display unit switching value and simulation output are exported by electric circuit connection container；Simulation input
Signal is also to be inputted by electric circuit connection container, is finally sent to treatment in situ display unit and is handled.
When measurement gaseous radioactivity is too high（More than set threshold value）, LPDU can provide alarm signal in 3s, carry simultaneously
It is used to control the magnetic valve on tie point pipeline to close gas exhaust piping for an on-off model.
On-Line Monitor Device downstream is mounted with an interim gas temporary storage tank, and the temporary storage tank is to prevent presignal delay from making
The buffer storage surprisingly discharged and set into exceeded gas.If necessary, nitrogen can be accessed from air inlet to monitoring device pipeline
Discharge is rinsed, to reduce radioactive background, is reduced because the radgas remained in last time monitoring process is to this survey
Measure the influence of result；And by the dilution discharge of such " a small amount of multiple " repeatedly, it can reach upstream high radioactivity gas
Body discharge monitors the purpose of passage alarm without causing at chimney.Simultaneously, it is contemplated that gas pressure and the needs of modularized design,
Pressuretight sylphon bellows are used under test gas and measurement apparatus connected mode, are easy to dismount.
In such scheme, flowmeter and pressure gauge are for monitoring flow and pressure in pipeline；Pressure-reducing valve is in order to anti-
Only atmospheric pressure causes irreversible damage to treatment in situ display unit, flowmeter, pressure gauge, the detector in downstream.
On-Line Monitor Device is discharged in the utility model nuclear radiation, simple to operate, easy to use, while when can reduce maintenance
Between.
Brief description of the drawings
Fig. 1 is the front schematic view of the utility model device.
Fig. 2 is the reverse side schematic diagram of the utility model device.
Fig. 3 is the structural representation of temporary storage tank in the utility model device.
Wherein：1. detector, 2. flowmeters, 3. treatment in situ display units, 4. electric circuit connection containers, 5. on-Line Monitor Devices
Air inlet, the gas outlet of 6. on-Line Monitor Devices, 7. first joints, 8. second joints, 9. pressure-reducing valves, 10. magnetic valves, 11.
First stop valve, 12. second stop valves, 13. handles, the air inlet of 14. temporary storage tanks, 15. tank bodies, the gas outlet of 16. temporary storage tanks.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the utility model will be further described.
As shown in Figure 1, 2, the present embodiment provides a kind of nuclear radiation discharge on-Line Monitor Device, including detector 1, is just located in
Display unit 3, electric circuit connection container 4, flowmeter, pressure-reducing valve 9, dismountable temporary storage tank for depositing gas temporarily are managed, online
The air inlet 5 of monitoring device connects after the tie point pipeline of parallel connection and the second bypass line with the sampling jar of the front end of detector 1
Connect, tie point pipeline is provided with magnetic valve 10 and pressure-reducing valve 9, and the second bypass line is provided with the second stop valve 12 and pressure-reducing valve
9, the gas outlet of sampling jar is connected with the second joint 8, and connecting pipe is provided with flowmeter, the gas outlet 6 of on-Line Monitor Device with
First joint 7 is connected, and connecting pipe is provided with the first stop valve 11, and the first joint 7 is connected with the gas outlet 16 of temporary storage tank, and second
Joint 8 is connected with the air inlet 14 of temporary storage tank.
In the above-described embodiments, the on-Line Monitor Device is arranged on fixed rack.
In the above-described embodiments, the temporary storage tank is located at below stand, as shown in figure 3, temporary storage tank includes a tank body 15,
Tank body is provided with air inlet and gas outlet, and tank body both ends are provided with handle 13.
In the above-described embodiments, the detector 1 uses plastic scintillator detector, detector face sampling jar, detection
Device 1 and sampling jar are by screw connection into an entirety.
In the above-described embodiments, the output end of the detector 1 is connected with treatment in situ display unit 3, and treatment in situ shows
Show that unit 3 is connected with electric circuit connection container 4.
When this discharge on-Line Monitor Device is put into onsite application, the air inlet of monitoring device, gas outlet are respectively connected to existing
The air inlet of field TEP systems, gas outlet；The second stop valve 12 is closed, opens the first stop valve 11；First joint 7, the second joint
8 are respectively connected to the gas outlet of temporary storage tank and air inlet, and check device gas circuit is normally upper electric afterwards, and treatment in situ shows in observation device
Show unit（LPDU）Liquid crystal display whether have abnormal conditions, such as monitoring device situation without exception, upstream TEP systems can be opened
Pipeline valve, upstream gas to be monitored enter from air inlet, continuous monitoring 10 minutes, do not have high radioactivity gas such as, then open
The pipeline valve of downstream TEP systems, discharge on-Line Monitor Device carry out free of discontinuities continue to monitor；As opened upstream TEP systems
Pipeline valve, find there is high radioactivity gas to pass through during continuous monitoring, discharge the meeting of magnetic valve 10 in on-Line Monitor Device
Close, prevent radgas to be discharged into downstream, while open the second stop valve 12, purged from air inlet access nitrogen,
Radgas dilution in temporary storage tank, if current measurement value is less than alarm threshold value, radiation level is reduced to one-level alarm threshold value
Below 30% when, one-level alarm disappears, and the closed mode of magnetic valve automatically terminates.
The content not being described in detail in this specification, belong to prior art known to those skilled in the art.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (5)
1. on-Line Monitor Device, including detector, treatment in situ display unit, electric circuit connection container, flow are discharged in a kind of nuclear radiation
Meter, pressure-reducing valve, dismountable temporary storage tank for depositing gas temporarily, it is characterized in that：The air inlet of on-Line Monitor Device is through simultaneously
It is connected after the tie point pipeline of connection and the second bypass line with the sampling jar of detector front end, tie point pipeline is provided with electricity
Magnet valve and pressure-reducing valve, the second bypass line are provided with the second stop valve and pressure-reducing valve, and the gas outlet of sampling jar connects with the second joint
Connect, connecting pipe is provided with flowmeter, and the gas outlet of on-Line Monitor Device is connected with the first joint, and connecting pipe is provided with first
The air inlet of the gas outlet connection of stop valve, the first joint and temporary storage tank, the second joint and temporary storage tank connects.
2. on-Line Monitor Device is discharged in nuclear radiation according to claim 1, it is characterized in that：The on-Line Monitor Device is set
In on fixed rack.
3. the nuclear radiation discharge on-Line Monitor Device according to claim 2, it is characterized in that：The temporary storage tank is positioned at fixation
Below stand, including a tank body, tank body are provided with air inlet and gas outlet, and tank body both ends are provided with handle.
4. on-Line Monitor Device is discharged in nuclear radiation according to claim 1, it is characterized in that：The detector is dodged using plastics
Bright bulk detector, detector face sampling jar, detector and sampling jar are by screw connection into an entirety.
5. on-Line Monitor Device is discharged in nuclear radiation according to claim 1, it is characterized in that：The output end of the detector with
Treatment in situ display unit is connected, and treatment in situ display unit is connected with electric circuit connection container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720374923.2U CN206710613U (en) | 2017-04-11 | 2017-04-11 | On-Line Monitor Device is discharged in a kind of nuclear radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720374923.2U CN206710613U (en) | 2017-04-11 | 2017-04-11 | On-Line Monitor Device is discharged in a kind of nuclear radiation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206710613U true CN206710613U (en) | 2017-12-05 |
Family
ID=60454901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720374923.2U Expired - Fee Related CN206710613U (en) | 2017-04-11 | 2017-04-11 | On-Line Monitor Device is discharged in a kind of nuclear radiation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206710613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504562A (en) * | 2021-06-30 | 2021-10-15 | 中国船舶工业集团公司第七0八研究所 | Activity pre-detection device for radioactive wastewater for ship |
-
2017
- 2017-04-11 CN CN201720374923.2U patent/CN206710613U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504562A (en) * | 2021-06-30 | 2021-10-15 | 中国船舶工业集团公司第七0八研究所 | Activity pre-detection device for radioactive wastewater for ship |
| CN113504562B (en) * | 2021-06-30 | 2022-07-08 | 中国船舶工业集团公司第七0八研究所 | Activity pre-detection device for radioactive wastewater for ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171205 |